Santa Clara, California, United States
• Contributed to the development of firmware for wireless portable ultrasound imaging device.
• Worked with Electrical and FPGA engineers to bring up boards.
• Brought up all sensors such as battery fuel gauge (Texas Instrument), infrared temperature sensor (Melexis), IMU (TDK-InvenSense accelerator, gyroscope, magnetometer), thermistor, four-channel LED, 12-bit ADC (Texas Instrument).
• Integrated Texas Instrument BluetopiaPM stack into firmware for BLE device.
• Customized hostapd.conf for WiFi Automatic Channel Selection algorithm.
• Specified and implemented API for mobile applications (iOS, Android) to interface with firmware.
• Designed and implemented firmware image encryption/decryption using OpenSSL.
• Handled thermal management and performed Wi-Fi coexisting tests to comply with FDA safety requirements.
• Designed and implemented power management to extend battery life and reduce device heat.
• Customized U-Boot (bootloader), designed and implemented OTA firmware update.
• Generated Firmware Requirements, V&V Protocol and Report for FDA 501(k) submission.